From Julian Winston, the famous Homeopathy Historian (author of
wonderful book - Faces of Homeopathy)

When Dr. Bonnell talks about internal vaccination he means the taking of
homoepathic remedies at the time of the epidemic (not as a routine thing -
but actually when the epidemic is at your door)
*******

Few Homeopathic doctors get to air their troubles in a Health Board
Trial. But doing so, when odds seem against you, and still you are
vindicated acts as a boost and benefit.

One winter, a number of years ago in our city, we had at one time
over seventy-five cases of smallpox. The city health physician and
local doctors recommended immediate vaccination, in the arm, of all
school children.

Here I was, a regularly licensed physician in Oklahoma, but I
believed in internal vaccination. Though it seemed mandatory that the
vaccination be external, I fortified myself with legal information
and began giving internal vaccination. My first fifty patients I gave
one powder of Variolinum 12x., three times daily for three days. I
took these powders myself. After the first fifty patients, however, I
decided to change to Vaccininum 12x, three powders each day for three
days. During this epidemic it fell my lot to treat twenty cases, and
to these twenty cases I gave two powders of Variolinum 30x for four
or five days. Among these twenty cases, two were black or confluent
smallpox. One of my cases, a woman, had black, hemorrhagic smallpox.
She was very low for nine days; all her hair came out, and all the
tissue fell off her nose and ears. She was a hideous looking sight,
more like a corpse than a living person.

Nearly one-half of my cases were treated in the city pest-house, and
here especially there was a chance for comparison of the homeopathic
and the "old school" method. Not one case receiving homeopathic care
died, while the "old school" doctors lost twenty percent of their
cases.

I gave about three hundred internal vaccinations, five to adults
acting as practical nurses; to the man who installed the telephone
and lights in the pest-house; to mothers who slept with their
children while they had smallpox in its severest form. All of these
people, exposed daily, were immune.

During this epidemic we had, in out city, a regular licensed, "old
school" physician who vaccinated himself on the arm with the
glycerinated virus point. It did not take, and two weeks later he
vaccinated himself again. It took in a very mild form. A year later,
to make sure he was immune for life, he took varioloid. Within two
years, however, he took smallpox in a very severe form and nearly
died.

About the third or fourth week of this epidemic I had a peculiar
experience. I had left some of the internal vaccination powders for a
man in a rooming house. He was in first class physical condition, but
seemed to have an idiosyncrasy for the powder. By the third powder he
had a headache, was sick at his stomach with a desire to vomit. On
the second day he broke out, with a small, red rash. I was called,
and diagnosed it as a physiological disturbance caused by the powder,
a term known as vaccinoid. A couple of hours later the city health
officer called on my patient and diagnosed it as varioloid and much
to the patient's disgust, removed him to the city pest-house. The
same day I was handed a summons to appear before the city health
board changed with failure to report a case of smallpox which has
been take;to the pest-house. I was asked to prove that the
insignificant looking little powders I was giving were as effective
as the arm point vaccination.

I hired a fine lawyer, and he began studying smallpox and internal
vaccination. To my surprise the second morning after taking the case,
he told me that he wanted to take the powders. He visited my patient
with me at the pest-house. We found, eighteen hours after the
vaccination powders had been removed, that the eruption had entirely
disappeared. Together, my lawyer and I studied, in minute detail, the
preparation of the glycerinated virus. When the trial started he was
"loaded to the brim" with information on smallpox.

He cross-examine the city doctor until he was completely befuddled.
He pointed out that this was a severe epidemic, and that he, the city
doctor, had lost a lot of cases. The doctor answered truthfully that
he had lost about twenty. The lawyer asked if the case of mine had
ever scaled off, or if there was ever any desquamation, and the
doctor replied, "No." When asked if he knew what vaccinoid was, the
doctor replied, Yes, it's a fine, little powder which Dr. Bonnell
states-will make you immune to smallpox." Whereupon, my attorney told
him that, according to his information, varioloid was a mild form of
smallpox, and vaccinoid was a constitutional disturbance, produced
upon a healthy body by giving, in a triturated, minute dose, the
active pus from a small pox pustule.

The court's attention was then called to similar cases in other
courts, proving that homeopathic vaccination was equally as good, or
better than the old school form of vaccination.. He showed the court
that more than twenty percent of the "old school" doctors patients
had died, and that all those treated homeopathically had lived. He
proved that internal vaccination was safe, an effective, and that our
city physician was not as well informed on smallpox as he should have
been. At his suggestion the case was promptly thrown out of court.

On page 246 of the book there is the legal case of Ed Canning vs. the
Board of Health of the City of Council Bluffs Iowa; the Independent
School District of Council Bluffs, Iowa,; and the members of its
Board of Education.
The case was held in the District Court of Pottawattamie County, Iowa
on the 19th of October 1905.
The court found that while the Board of Education has the right to
require students to be vaccinated against smallpox when an epidemic
is prevailing, the Board did not have the power to specify and
enforce any recognized method of vaccination to the exclusion of
others "recognized and practiced by any Standard School of Medicine,
authorized or established under the laws of this State."
Since the homeopathic "school" was recognized (it had a department at
the university of Iowa), and since "internal vaccination" is
"equally or more effective than vaccination by the scarification
method," the court found that the schools could not exclude children
who had been given an internal vaccination.